Home / 11,072.48-15,281.28-6,355.84

Finding the Fourth Proportional to 11,072.48, 15,281.28 and 6,355.84

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Solution

The fourth proportional to 11,072.48, 15,281.28 and 6,355.84 is: 8,771.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,072.48 : 15,281.28 = 6,355.84 : x
  2. Step 2: Convert to fraction form
    11,072.48/15,281.28 = 6,355.84/x
  3. Step 3: Cross multiply
    11,072.48x = 15,281.28 × 6,355.84
  4. Step 4: Simplify right side
    11,072.48x = 97,125,370.68
  5. Step 5: Solve for x
    x = 97,125,370.68/11,072.48
  6. Step 6: Final answer
    x = 8,771.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.